(function(){
	$.JScript = {
			MsgBox : {
			    Alert: function (title, msg) {
			      GenerateHtml("alert", title, msg);
			      btnOk(); //alert只是弹出消息，因此没必要用到回调函数callback
			      btnNo();
			    },
			    Confirm: function (title, msg, callback) {
			      GenerateHtml("confirm", title, msg);
			      btnOk(callback);
			      btnNo();
			    }
			}

	};
	
	//生成Html
	var GenerateHtml = function (type, title, msg) {
 
		var _html = "";
 
		_html += '<div id="mb_box"></div><div id="mb_con"><span id="mb_tit">' + title + '</span>';
		_html += '<a id="mb_ico">x</a><div id="mb_msg">' + msg + '</div><div id="mb_btnbox">';
 
		if (type == "alert") {
			_html += '<input id="mb_btn_ok" type="button" value="确定" />';
		}
		if (type == "confirm") {
			_html += '<input id="mb_btn_ok" type="button" value="确定" />';
			_html += '<input id="mb_btn_no" type="button" value="取消" />';
		}
		_html += '</div></div>';
 
		//必须先将_html添加到body，再设置Css样式
		$("body").append(_html); GenerateCss();
	};
	 
	//生成Css
	var GenerateCss = function () {
 
		$("#mb_box").css({ width: '100%', height: '100%', zIndex: '99999', position: 'fixed',
			filter: 'Alpha(opacity=60)', backgroundColor: 'black', top: '0', left: '0', opacity: '0.6'
		});
 
		$("#mb_con").css({ zIndex: '999999', width: '400px', position: 'fixed',
			backgroundColor: 'White', borderRadius: '15px'
		});
 
		$("#mb_tit").css({ display: 'block', fontSize: '14px', color: '#444', padding: '10px 15px',
			backgroundColor: '#DDD', borderRadius: '15px 15px 0 0',
			borderBottom: '3px solid #009BFE', fontWeight: 'bold'
		});
 
		$("#mb_msg").css({ padding: '20px', lineHeight: '20px',
			borderBottom: '1px dashed #DDD', fontSize: '13px'
		});
 
		$("#mb_ico").css({ display: 'block', position: 'absolute', right: '10px', top: '9px',
			border: '1px solid Gray', width: '18px', height: '18px', textAlign: 'center',
			lineHeight: '16px', cursor: 'pointer', borderRadius: '12px', fontFamily: '微软雅黑'
		});
 
		$("#mb_btnbox").css({ margin: '15px 0 10px 0', textAlign: 'center' });
		$("#mb_btn_ok,#mb_btn_no").css({ width: '85px', height: '30px', color: 'white', border: 'none' });
		$("#mb_btn_ok").css({ backgroundColor: '#168bbb' });
		$("#mb_btn_no").css({ backgroundColor: 'gray', marginLeft: '20px' });
 
 
		//右上角关闭按钮hover样式
		$("#mb_ico").hover(function () {
			$(this).css({ backgroundColor: 'Red', color: 'White' });
		}, function () {
			$(this).css({ backgroundColor: '#DDD', color: 'black' });
		});
 
		var _widht = document.documentElement.clientWidth; //屏幕宽
		var _height = document.documentElement.clientHeight; //屏幕高
 
		var boxWidth = $("#mb_con").width();
		var boxHeight = $("#mb_con").height();
 
		//让提示框居中
		$("#mb_con").css({ top: (_height - boxHeight) / 2 + "px", left: (_widht - boxWidth) / 2 + "px" });
	};
 
 
	//确定按钮事件
	var btnOk = function (callback) {
		$("#mb_btn_ok").click(function () {
			$("#mb_box,#mb_con").remove();
			if (typeof (callback) == 'function') {
				callback();
			}
		});
	};
 
	//取消按钮事件
	var btnNo = function () {
		$("#mb_btn_no,#mb_ico").click(function () {
			$("#mb_box,#mb_con").remove();
		});
	};
})();